Vacuum-bottle.



Patnma Mans, 1909.

JOHN G. LYMAN, OEPHILADELPHIA, PENNSYLVANIA.

YAGUUM-BOTTLE.

`Slrielcilcation of Letters Patent.

Patented may is, 190e.

Application/'Bled August 18, 1908. Serial No. 449,027.

To all whom it may concern:

Be it known that I, JQHN LYMANVa citizen of the' United States,residiiig in the city and county of Philadelphia, State of (Pennsylvania, haveinvented a new and useful VacuuingBottle. of which the following is a specification.

This invention relates to a newand useful receptacle for s'tori ng liquids sothat the tem: perature of` the same may be maintained substantially constant for a long period 'of time and the effectiveness of the receptacle be substantially uniinpaired after long continued use'.

-It has for anobject, 'to provide a receptacle of thistype' with a suitable .discharge opening which is so arranged relative to ad' jacent parts as to prevent at any time, the contents of the'ieceptacle from coming in contact. with the insulating means inclosing the said receptacle.-

. that the various instrumentalities of Which-l tol ecorresponding parts in the figures.

It has for a further object, a novel arrangement' -of mouth opening for a receptacle operating` on the vacuum principle, wherein a joining ring is-located around the neck of the bott-le in such a position that'it does not form a collecting placefor overflowing .contents of..the receptacle and the .gathering of disease germs.

For the purpose of illustratingimy inven- 'tionfnI have shown in the accom an in a P y g drawin s one form thereof-which is at present-preferred byme, since the saine has been found in practice to give satisfactory and ren liable results, although. it is to be understood my invention. consists can bev variously ai'.-

-ranged and organized and that my inven tion is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

The figure represents `a sectional eleva# tion ofa' receptacle embodylng my invention..

. Similar numerals f reference "indicate 'Referring tothe. drawings: l designatesa casing'g-fofa.receptacleembodying my invention, the saine preferably being of metal or other suitable material 'andhavin a neck 2 'formed therein and 'provided wit a thread means vreinovf'zbly located iii the neck opening 4 of .the receptacle. 6 desiv ates the from 'contact Witliythe wallsiof the casing and'l relative displacement byfmeaiis of suitable material 7 therebetween. The material is preferably a non-conductor `of heat or cold.

and serves to maintain the coiitei'itiI of 'the receptacle at.,a substantially 'constant teniperaturee-thus if the receptacle is filled with a liquid at a temperature approxiii'iating the boiling point, the material will resist the escape of any .heat units. In the saine, inannei' the receptacle maintansthe contents at a low temperature.

8 designates thek inner-wall4 ofthe saine vreceptacle land is of similar contour to the outer shell 6 but located at a slight distance therefrom in orderrto provide ay chambei'dQ' therebetween from which, in order to' make anoperativ receptacle of *the type to which niyinvention relates, theJ air .is exhausted from the said space 9 forming a vacuum and a lining l0 is preferably provided Within the same of quick silver or 'similar material. Of course, it will be understood by those skilled in the art that the insulating material 7 between the outer shell 6 andthe casing l hasto be securely sealed therein. in order to y preventw'water or liquids leaking into this snace and destroying in a large measure, the insulating effect of this material. For this 'purpose in the present'instancql employ a -when the'capA has been removed and 'the cork 5 withdrawn therefrom', the contents of ,the receptacle may be readily poured out .without ldanger of the liquid or'hke containing. subst-ance flowing ldown on to the joining ring. 11. lAttention is called to thelfact that .the ring 11 is located below the mouth vof the j bottle and between-.theupper end of the casing andthe neck portion of the bottle,.the top ofthe rin terminating substantially at the same leve as the top edge of said cas-y ingfwh'ereby thering is. protected and the appearance of the bottle is preserved as well.

thefpaclnngring'IL-It will be readily ap# paent'jin'greceptaclesihaving the mouth of ttention'jis especially directed to the mouth opening 1.125 in that the same 'projects alI distaicebeyoi'd the neckfjQyof the casing 1 'and the l:vacuum spacel 9 isalso' carried up ,j therewitliforming an insulation interior ofv outershell'of areceptaclegv-L within t e casing l the same'being''protected fthe inner receptacles substantially flush with I the packing material that a surface is exsterilize properly as the heated contents are -absorbed by the joining material and open rlerices which cannot be etliciently cleaned.

"lation between the .By 4my' novel mouthopening I protect-'the joining from .contact with/the'contents of the receptacle vand providela vessel which can be sterilized throughoutand furthermore the vacuum extends sufliciently to form an insufof the receptacle. g

It will be readily apparent-that have de` viseda very novel a'ndAuseful means of prof.

, tecting the insulated material v7 of the bottle which has heretofore gradually become permeated with. .the overflow from thefreoep tacles audits-usefulness destroyed as a heat andcold retaining means. l It willnow b'eappa-rent' that I have de-A embodies the features of advantage enumer.l

ateda's"desirable in the statement of the in- Yention' 4en dthe'abo ve description and whilejoining and the interior' I have in the present instance shown and de? i scribed the preferred embodiment thereof which has been found in practicev toJ give satisfactorya11d.'1'eliable results, itgis .to Lbe vunderstood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention orsacricing any of its advantages. Having thus described 'my invention, what I 4claim as new and desire to secure' by Letters Patent, is l In av device of the character described, a double walled receptacle having a vacuum therebetween` and formed with a neck.. p01'-l -tion 'extending upwardly. to the mouth and ofu'iniform diameter, a casing 'surrounding said receptacle, the upper edge of said casing tern'nnating below the mouth of thereceptaclejsaid vacuum extendingabovethe ysaid edgeL end a `ring located below said mouth and between Athe upper end of said casi-ng and said-neck portion, the top ofsad i ring terminatin.gsubstantially at the same level as the top edge ofsaid casing. ,v Y Y VJ`( )HN G. .LYMAN. Witnesses: 

